25 July 2021, Japan, Tokio: Equestrian sport/dressage: Olympics, preliminary competition, individual, Grand Prix, Baji Koen Equestrian Park. A staff member shows the judges the handkerchief with blood, which came from the horse Tribiani, ridden by Chew from Singapore. Horse Tribiani had blood on his mouth, after which the test was stopped. Photo: Friso Gentsch/dpa